RIO DE JANEIRO — Michael Phelps captured his 23rd and final Olympic gold medal on Saturday as the United States sealed a week of dominance in the pool by winning the men's and women's medley relays.
Denmark's Pernille Blume beat a field of world and Olympic champions to take gold in the women's 50 freestyle and Italy's Gregorio Paltrinieri won the men's 1,500 freestyle after dominating almost from the start.